Choose these metric screws for high-strength fastening. Often used in high-stress applications, such as valves, pumps, motors, and automotive suspension systems, these screws are at least 25% stronger than medium-strength steel screws.

Tighten these screws by turning them to the left; once fastened, they prevent counterclockwise-moving parts from loosening. For use in high-strength fastening applications.

When clearance for a wrench is limited, these screws have a Phillips drive so you can install them with a screwdriver. They are used for high-strength fastening.

Choose these metric screws for fastening most machinery and equipment. They are twice as strong as low-strength steel screws.

Choose these screws for their adherence to strict military standards for material and construction. Use them to fasten most machinery and equipment.

Tighten these screws by turning them to the left; once fastened, they prevent counterclockwise-moving parts from loosening. For use in medium-strength fastening applications.

About half as strong as medium-strength steel screws, these screws can be used for light duty fastening applications, such as securing access panels.

Choose these metric screws for heavy duty stamping applications as well as earth-moving machinery such as bulldozers and excavators. These screws are 10% stronger than our high-strength metric steel screws.

Designed for construction and exterior building applications, these metric screws are often used to join I-beams and scaffolding. Their partial threading leaves an unthreaded portion that is strong enough to stand up to the sideways forces of joints.

These Grade B7 steel screws are nearly twice as strong as our stainless steel screws for high-pressure applications. Also known as pressure bolts, they meet the high-pressure, high-temperature regulations of ASTM A193 and are used to secure pressure tanks, valves, and flanges.

These metric screws are at least 25% stronger than medium-strength steel screws. Use them in high-stress applications, such as valves, pumps, motors, and automotive suspension systems. The flange distributes pressure where the screw meets the surface, so there's no need for a washer.

Choose these metric screws for fastening most machinery and equipment. With a flange distributing pressure where the screw meets the surface, there is no need for a separate washer.

Comparable in strength to Grade 9 screws, these are about 20% stronger than high-strength steel screws and often used in heavy duty applications, such as stamping and earth-moving equipment. The flange eliminates the need for a washer.

These metric screws are suitable for fastening most machinery and equipment. They have a serrated flange that helps prevent loosening from vibration.

Choose these metric screws for high-stress applications, such as valves, pumps, motors, and automotive suspension systems. They are about 10% stronger than medium-strength steel screws. Their serrated flange helps to resist vibration.

These Grade 5 steel screws are over 70% stronger than our stainless steel wire-lockable hex head screws. Wire these screws together through the hole in the head to get more vibration resistance than any other screw.

These Class 8.8 steel screws are suitable for fastening most machinery and equipment. They are over 50% stronger than stainless steel thread-locking screws. For vibration resistance, they have a thread locker bonded to the threads.

Place one of these retainers around a hex head screw or nut, then attach wire to lock the screw or nut in place and keep it from loosening.

Choose these screws for their adherence to strict military standards for material and construction.

A Torx-Plus drive has more points of contact than a hex drive, allowing you to tighten these screws with less slippage or damage to the recess.

Made of alloy steel, these low-profile screws are nearly twice as strong as their stainless steel counterparts. With half the height of a standard socket head, these low-profile screws fit in tight spaces.

These general purpose flanged screws distribute pressure where the screw meets the surface, eliminating the need for a washer.

With a tensile strength of 170,000 psi, these alloy steel screws are among the strongest we carry. They are stronger than Grade 8 steel screws and are nearly two and a half times stronger than stainless steel thread-locking screws. They have a thread locker to prevent loosening from vibration.

With a tensile strength of 180,000 psi, these alloy steel screws are among the strongest we carry. They are stronger than Grade 8 steel screws and more than two and a half times stronger than stainless steel screws with split lock washer. The split lock washer helps to resist vibration.

Nonconductive and softer than brass, the nylon tip reduces vibration and eliminates damage from metal touching metal.

These steel screws have a zinc plating for mild corrosion resistance.

Choose these screws for their adherence to strict military standards for material and construction.

These metric alloy-steel screws are twice as strong as standard steel Torx flat head screws.

Lower strength than alloy steel, use these screws for light duty fastening.

Angled under the head, these metric screws fit in countersunk holes and sit flush with the surface of your part.

Made from alloy steel, these screws are nearly twice as strong as stainless steel flat head screws.

These metric alloy steel screws are nearly twice as strong as stainless steel button head screws.

A zinc plating makes these metric pan head screws corrosion resistant in wet environments.

Made to Japanese Industrial Standards, these screws have narrower and shorter heads than standard Phillips pan head screws.

Made from alloy steel, these screws are three times stronger than standard steel button head Torx screws. A Torx-Plus drive has more points of contact than other drives, allowing you to tighten the screw without damaging the recess.

Add a decorative look when fastening parts—these metric screws have a painted head.

These screws have a Torx or Torx-Plus drive for more points of contact than other drives, allowing you to tighten the screw without damaging the recess.

These pan head screws are zinc plated for corrosion resistance in wet environments.

A zinc plating provides mild corrosion resistance.

A zinc plating provides mild corrosion resistance.

These metric alloy steel screws are nearly twice as strong as stainless steel button head screws. They have a flange that distributes pressure across a wide surface, eliminating the need for a separate washer.

Made from alloy steel, these screws are nearly twice as strong as stainless steel button head screws. Their tamper-resistant Torx drive (also known as a pin-in Torx drive) makes them difficult to remove without special tools.

Made from alloy steel, these screws are nearly twice as strong as stainless steel button head screws.

These metric screws have a washer with sharp internal teeth that dig into surfaces to resist large amounts of vibration. The smooth outside edge of the washer provides a finished look. Also known as Sems screws, the washer rotates freely but is permanently attached.

The washer on these screws has sharp external teeth that dig into surfaces for maximum holding power and vibration resistance. Also known as Sems screws, the washer rotates freely but is permanently attached.

As you tighten these metric screws, the split lock washer flattens to add tension and prevent loosening from small amounts of vibration. Also known as Sems screws, the washer rotates freely but is permanently attached.

A zinc plating provides mild corrosion resistance.

Comparable to Class 12.9 steel.

The metric-sized threads on these screws are the same diameter as the shoulder. Comparable in strength to Class 12.9 steel.

These shoulder screws come with a traceable lot number and material test report. Similar in strength to Grade 8 steel.

A zinc plating provides mild corrosion resistance.

The head height of these screws is about two-thirds the head height of a standard shoulder screw. Use them in low-clearance applications such as inside machines.

These have a head height about one-third the head height of a standard shoulder screw.

Available in metric sizes, these screws have a locking element on the threads that adds friction to resist loosening. Comparable to Grade 8 steel, they are the strongest screws we offer.

Comparable to Grade 8 steel, these screws are the strongest precision shoulder screws we offer.

The triangular shank presses tightly as it forms threads, so screws resist loosening in soft metals such as brass, aluminum, and copper.

These screws have a hex head for a secure grip with a wrench.

A Torx drive has more points of contact than a Phillips drive, allowing you to apply extra force with less slippage or damage to the recess.

These steel screws are zinc plated to resist corrosion in wet environments.

Commonly used with door hinge hardware, these screws cut threads in material such as aluminum and brass.

These 18-8 stainless steel screws have a hardened steel drill point to penetrate steel and are coated to increase corrosion resistance.

These screws have the strength of 410 stainless steel with added corrosion resistance.

Drill a pilot hole, cut threads, and fasten in one motion with these metric-threaded screws. Made of steel, they’re strong and wear resistant.

18-8 stainless steel screws have good chemical resistance.

By drilling their own holes and fastening in a single operation, these square-drive screws save time and effort. Made of 410 stainless steel, they're both stronger and more wear resistant than 18-8 stainless steel screws.

A tamper-resistant Torx driver is required for installation and removal. Also known as pin-in-Torx, these screws allow you to apply extra force with less slippage or damage to the recess.

Made from stainless steel, these screws are more corrosion resistant than steel, and almost as strong.

With a drilling tip, these metric screws cut their own pilot hole and threads as you fasten them into material.

A tamper-resistant Torx driver is required for installation and removal. Also known as pin-in-Torx, these screws allow you to apply extra force with less slippage or damage to the recess.

These steel screws have a head encapsulated by 18-8 stainless steel.

Known for their strength, these alloy steel screws are coated to provide corrosion resistance in wet environments.

Serrations under the head act as a brake to prevent overtightening and damaging threads.

Also known as roofing screws, these screws are long and made from hardened steel to fasten rigid insulation board to steel decking.

A Torx drive has more points of contact than Phillips, slotted, and square drives, allowing you to apply extra force with less slippage or damage to the recess.

These steel screws are zinc plated to resist corrosion in wet environments.

A flange under the head distributes holding pressure and reduces the risk of crushing thin metal.

A free-rotating, permanently attached washer distributes holding pressure over a wider area than a flange and remains stationary to prevent scratching the material surface as you tighten the screw.

These steel screws have a black-oxide finish to resist corrosion in dry environments.

Made from 18-8 stainless steel, these screws are chemical resistant.

Also known as Fastite screws, these offer more thread engagement in 0.028" to 0.063" thick sheets to prevent overtightening and damaging threads.

These screws have a hex head for a secure grip with a wrench.

Able to penetrate overlapping sheets, these screws have a secure hold in wood.

These steel screws are zinc plated to resist corrosion in wet environments.

These steel screws have corrosion-resistant finishes.

With more points of contact than Phillips-, slotted-, and square-drive screws, you can firmly press these Torx-drive screws into wood without stripping them or damaging the recess—their threads create a tight hold.

These steel screws are zinc plated to resist corrosion in wet environments.

These steel screws are hot-dipped galvanized to resist corrosion in wet environments.

These steel screws are zinc plated to resist corrosion in wet environments.

A Torx drive has more points of contact than a Phillips drive, allowing you to apply extra force with less slippage or damage to the recess.

These Phillips head screws have a decorative rounded top that provides a finished appearance.

These steel screws are zinc plated to resist corrosion in wet environments.

Often used for drawer slides and cabinet hardware, these screws—also known as Euro and Type B screws—create a strong hold in small, shallow holes in wood.

The neoprene-backed washer seals out contaminants.

Thread-forming screws press threads into drilled holes for a tight, vibration-resistant assembly.